Chunky chocolate nut bars
Adding cinnamon to basic vanilla shortbread lends these bars an extra Christmassy fragrance
Use this dough as the base for biscuits, to eat yourself, or to make as a Christmas gift
Nutrition: per serving
Tip the flour into a food processor. Cut the butter into small pieces and drop them into the bowl, then whizz until the mixture looks like breadcrumbs.
Add the sugar, vanilla and egg yolks and whizz to a small dough.